Why would a company keep doing business with someone that went to their bank and accused that company of fraud? Making a chargeback is a serious claim of malfeasance by the company that has to then be arbitrated by the third party bank. It’s not a mechanism for getting a refund; it’s an accusation of fraud who’s remedy may include a refund.
The problem is company you bought from through the big platform did fraud, and the platform was too lazy to care.
It's fine being blacklisted from that tiny fraudulent company. It's anti-consumer when a legitimate chargeback can't be filed because some giant company processed the credit card and will bring their wrath upon you.
